Comments on Design with Microcontrollers: microSD FAT32 testing using Visual C++

Hi CC Dharmani, I didn't exactly find the idea...

2012-02-10T04:49:16.153-08:00

Hi CC Dharmani,
I didn't exactly find the idea where to separate the data and FAT buffers to achieve high speed and optimization in the firmware..
CAN U PLEASE HELP ME OUT..

Asif

Hi Dharmani, I have successfully detected SD/SDHC ...

2011-12-21T05:06:38.459-08:00

Hi Dharmani,
I have successfully detected SD/SDHC card type using M16 Target processor.
I am facing problem in getting boot sector of memory card. I am using firmware version "SD_GCC_V2.4.1_M32" and have 4GB SDHC card.
Is there a need to change firmware for commands to convert block address into bye address for this firmware version..???
Getting invalid values for (MBR boot signature, 55AA)...
I shall be very thank full to U if please guide me.
If there any other need of modification please inform ...

Thanking You in anticipation

Kind Regards
Asif

Hi, I have a problem and I want your opinion. In...

2011-10-10T11:24:35.032-07:00

Hi,

I have a problem and I want your opinion.

In my case, the data is coming at the rate of 20 k samples/sec and I am unable to write at this faster speed.

When I try to write the data on a faster speed, most of the times the block of data is written very fast but some time the memory gets busy for a duration of around 600 msec for a block of data to program in the main memory.

I am using single block write command and not multiple block command for data because I do not know that how long the recording can take.

Can you please tell me how much faster one can write on SD card memory 2GB? Or What is the way to write at the fastest speed?

By the way, I never use erase command, as I assume that the erase command is not needed?

/Ahsan

Thanks for your helpful project, I added the c++ f...

2011-07-17T22:29:09.551-07:00

Thanks for your helpful project,
I added the c++ files and header files to visual c++ 2008 but there is some error.could u plz help me?

My bad. i'm reading the wrong sector. your rou...

2011-06-28T02:06:26.582-07:00

My bad. i'm reading the wrong sector. your routines works perfectly in cvavr. Thank you Very much.

I mean using VC++. by the way right now I'm po...

2011-06-26T21:51:38.200-07:00

I mean using VC++. by the way right now I'm porting your sd_routines to cvacr. but I have some problem. when I try read single block, the result is zero character. the porting is not done yet. maybe I miss something. and if i try using mmc, the initialization is always failed. can you help me?. coz my project using different type of card.

Hi Umam, function for reading a sector of the SD c...

2011-06-22T08:33:29.130-07:00

Hi Umam, function for reading a sector of the SD card is part of this library. Look into the SD_routines.c for 'SD_readSingleBlock()' function. You can call that function to read any sector of the card after the card is initialized. Look into the comments in the code for more info.

I want to make program that read sector in SD card...

2011-06-21T18:29:35.192-07:00

I want to make program that read sector in SD card. can you help me?

i am beginner...my project is "implementation...

2011-04-08T09:12:32.376-07:00

i am beginner...my project is "implementation of Fat32 file system on sd card by using Atmega8"
plz give me some real time appilications for this project...
give some little bit information about how to implement fat 32 file system on sd card...

Nice website for microcontroller project. Thanks f...

2011-03-06T04:29:16.960-08:00

Nice website for microcontroller project. Thanks for your effort.

Regards
Mr.Moh Ibnu Malik
http://microrobotics.blogspot.com

Kanna, What compile error did you get? If you are...

2011-01-24T21:00:23.088-08:00

Kanna,
What compile error did you get? If you are using the latest (free) Visual C++ Express download from Microsoft, all you need are three C files and two H files to be put into your project, then you just use the default compile option. If you are using other compiler, then you might need to add some runtime support libraries.

Hi Sir, i am not able to comple this code. I am ...

2011-01-24T02:19:32.547-08:00

Hi Sir,

i am not able to comple this code. I am trying some bugs rectification and not able to compile this code. so kindly give a correct code for FAT32 Implementation.

Thanking you sir,

Hi Luis, Are you able to read the card? For examp...

2011-01-17T17:17:50.078-08:00

Hi Luis,
Are you able to read the card? For example, what happen if you type SDCARD -r E: data.txt?
It is most likely that you have a wrong drive letter for the card slot.

im getting an error when i try to write to the sdc...

2011-01-15T18:27:30.564-08:00

im getting an error when i try to write to the sdcard: "error opening memory card". I reformatted the sdcard to fat32 and put it in my computers sdcard port, have any idea why i get the error. The card is sdcard not micro.

This code actually deals with software testing of ...

2010-12-29T21:24:29.472-08:00

This code actually deals with software testing of FAT32 libraries and functioning of SD cards.

For your application, any VGA color camera should do, which are available quite easily in market.

i m tryng to make this project but not able to fin...

2010-12-28T18:26:07.711-08:00

i m tryng to make this project but not able to find camera for this

c328 cam is discontinued

please help me reply to kishoreinvits@gmail.com

http://www.riccibitti.com/witnesscam/abstract.htm